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FreeRDP/include/freerdp/utils/stream.h
2011-07-01 16:06:53 +08:00

56 lines
1.4 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Client
* Stream Utils
*
* Copyright 2009-2011 Jay Sorg
* Copyright 2011 Vic Lee
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __STREAM_UTILS_H
#define __STREAM_UTILS_H
#include <freerdp/types/base.h>
typedef struct _STREAM STREAM;
struct _STREAM
{
uint8 * buffer;
uint8 * ptr;
int size;
};
typedef uint8 * STREAM_MARK;
STREAM *
stream_new(int size);
void
stream_free(STREAM * stream);
#define stream_get_mark(_s) _s->ptr
#define stream_set_mark(_s,_m) _s->ptr = _m
#define stream_get_uint8(_s, _v) do { _v = *_s->ptr++; } while (0)
#define stream_get_uint16(_s, _v) do { _v = \
(uint16)(*_s->ptr) + \
(((uint16)(*(_s->ptr + 1))) << 8); } while (0)
#define stream_set_uint8(_s, _v) do { *_s->ptr++ = (uint8)(_v); } while (0)
#define stream_set_uint16(_s, _v) do { \
*_s->ptr++ = (_v) & 0xFF; \
*_s->ptr++ = (_v) >> 8; } while (0)
#endif /* __STREAM_UTILS_H */